:root {
    --example-min-height: 817px;
}

.root {
    margin: 0 auto;
    padding: 5px 10px;
    width: 66%;
    height: auto;
    background-color: #d7e0b8;
    position: relative;
    border-radius: 5px;
}

.introduce {
    min-height: 50px;
    width: 97%;
    border: 1px solid grey;
    border-radius: 5px;
    margin: 5px auto;
    text-align: left;
    line-height: 50px;
}

.introduce span {
    margin-left: 5px;
}

.example {
    min-height: var(--example-min-height);
    width: 100%;
    border-radius: 5px;
    text-align: center;
    margin: 5px auto;
    position: relative;
}

.remarks {
    min-height: 50px;
    width: 97%;
    border: 1px solid grey;
    border-radius: 5px;
    margin: 5px auto;
}

.example-left {
    position: absolute;
    left: 1.5%;
    top: 0;
    min-height: var(--example-min-height);
    width: 48%;
    border-radius: 5px;
    border: 1px solid grey;
    text-align: left;
}

.example-right {
    position: absolute;
    min-height: var(--example-min-height);
    width: 48%;
    top: 0;
    right: 1.5%;
    border-radius: 5px;
    border: 1px solid grey;
}

.example-left ul {
    list-style-type: none;
}

.example-left ul li {
    padding: 5px;
}

.demo {
    width: 50px;
    height: 50px;
    background-color: yellowgreen;
    position: relative;
}

.remarks-text {
    margin-left: 5px;
    line-height: 50px;
}

.x25 {
    position: absolute;
    top: 0;
    left: 25px;
    height: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}

.y25 {
    position: absolute;
    top: 25px;
    left: 0;
    width: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}

.x50 {
    position: absolute;
    top: 0;
    left: 50px;
    height: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}

.y50 {
    position: absolute;
    top: 50px;
    left: 0;
    width: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}

.x75 {
    position: absolute;
    top: 0;
    left: 75px;
    height: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}

.y75 {
    position: absolute;
    top: 75px;
    left: 0;
    width: 5px;
    z-index: 2;
    margin: 0;
    padding: 0;
}
